﻿/* 
 * Copyright (c) 2009 Intel Corporation
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * -- Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * -- Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * -- Neither the name of the Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE INTEL OR ITS
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * Contributor: Nathan Letwory
 */

using System;

namespace VerseSharp
{

	public delegate void ObjectMethodCallCallback(uint nodeID, ushort groupID, ushort methodID, uint senderID, byte[] PackedParams);

	public class ObjectMethodCallCommand : IVerseCommand
	{
		public CommandID ID { get { return CommandID.ObjectMethodCall; } }
		public uint NodeID;
		/// <summary>
		/// ID of the method group.
		/// </summary>
		public ushort GroupID;
		public ushort MethodID;
		public uint SenderID;
		public byte[] PackedParams;

		public void Deserialize(byte[] source, ref int pos)
		{
			NodeID = DataConverter.BigEndian.GetUInt32(source, pos);
			pos += 4;
			GroupID = DataConverter.BigEndian.GetUInt16(source, pos);
			pos += 2;
			MethodID = DataConverter.BigEndian.GetUInt16(source, pos);
			pos += 2;
			SenderID = DataConverter.BigEndian.GetUInt32(source, pos);
			pos += 4;

			ushort length = DataConverter.BigEndian.GetUInt16(source, pos);
			PackedParams = new byte[length];
			Buffer.BlockCopy(source, pos, PackedParams, 0, length);
			pos += length;
		}

		public void Serialize(byte[] destination, ref int pos)
		{
			DataConverter.BigEndian.PutBytes(destination, pos, NodeID);
			pos += 4;
			DataConverter.BigEndian.PutBytes(destination, pos, GroupID);
			pos += 2;
			DataConverter.BigEndian.PutBytes(destination, pos, MethodID);
			pos += 2;
			DataConverter.BigEndian.PutBytes(destination, pos, SenderID);
			pos += 4;
			if (PackedParams == null)
				PackedParams = new byte[2];
			int length = PackedParams.Length;
			DataConverter.BigEndian.PutBytes(PackedParams, 0, (ushort)length);
			Buffer.BlockCopy(PackedParams, 0, destination, pos, length);
			pos += length;
		}
	}
}
